A car that was in the area when shots were fired into an Arncliffe home where two young children were sleeping is believed to be the same vehicle used in another street shooting a week later which also involved children.
In between the incidents, police believe the Mercedes Benz was resprayed from white to black.
Detectives have released CCTV and photos, with an appeal for information from the public to help the investigation.
The first incident occurred just before 2am on Friday December 27, 2019 when shots were fired into a home in Wollongong Road, Arncliffe.
Four occupants, including two children, aged two and three, were inside sleeping, but were uninjured.
A white Mercedes Benz was seen driving away on Wollongong Road, before turning into Done Street.
The second incident was about 10.15am on Saturday January 4, 2020 when a silver Mercedes AMG approached the intersection of Daisy and Gordon Parker streets, Revesby and a black matte Mercedes Benz reversed and struck the AMG.
The driver of the black Mercedes Benz jumped out and fired a number of shots towards the AMG, which drove away.
The occupants of the AMG - a man, 38, and two children, aged seven and nine - were not injured.
Detectives from the State Crime Commands Criminal Groups Squad, assisted by St George and Bankstown Police Area Commands, are investigating under Strike Force Cruikshank.
"The incidents are being treated as targeted and linked," a police spokesman said.
The CCTV vision shows the white Mercedes Benz in the Arncliffe shooting and the black matte Mercedes Benz in the Revesby incident, "which are believed to be the same car".
Investigators are appealing to the community for information to locate the Mercedes and identify the occupants who were wearing all black clothing.
In particular, they're interested in speaking with anyone who may have noticed the vehicle or the occupants in the area around the time of the shootings.
The driver is described as being of Mediterranean/Middle Eastern appearance, with a beard.
